-76.87% is the change from 402 to 93
Calculation steps:
[( 93 - 402 ) ÷ 402] x 100 = -76.87%
Formula
Percentage change = [(93 - 402) / 402] x 100
Subtract the new number by the original number
93 - 402 = -309
-309 ÷ 402 = -0.7686567164179104
-0.7686567164179104 x 100 = -76.87%